You Can Declare That an Interface Is a Functional Interface

question 51

Multiple Choice

You can declare that an interface is a functional interface by preceding it with the @FunctionalInterface annotation. The compiler will then ensure that the interface contains ________; otherwise, it'll generate a compilation error.

• A) no abstract methods
• B) all abstract methods
• C) only one abstract method
• D) one or more abstract methods.

---

Definitions:

Incremental Working Capital

The additional amount of net working capital that a company needs to invest in a project.

Opportunity Cost

The value of the best alternative that is foregone when a particular course of action is chosen.

Incremental Cash Flow

is the additional cash flow generated by a company from a new project or investment, used to analyze the profitability of taking on the new project.

Sunk Cost

A cost that has already been incurred and cannot be recovered, which should not influence future business decisions.